Laughing Clam Share definition Flag A woman's vagina expelling fluids and/or penis due to laughter during or after sex. So after I came, I told her that joke about the farmer and his daughter, and she pulled a Laughing Clam. Stuff went everywhere! Laughing Clam by Jonn Baca October 23, 2007 0 0 Get merch Get the Laughing Clam mug. Buy Now — $32.95 See more merch